On May 24, 2012, Universal Studios Hollywood held the grand opening for Transformers: The Ride 3D. Making a special appearance were Autobots Optimus Prime and Bumblebee, rolling in as vehicles and walking the red carpet as robots. At the end of the video, Optimus Prime voice actor Peter Cullen chimes in with a quick special message.
Optimus Prime & Bumblebee as vehicles and robots at Transformers: The Ride 3D grand opening